P-660H/HW-T Series User’ Guide
Appendix D
382
Subnetting With Class A and Class B Networks.
For class “A” and class “B” addresses the subnet mask also determines which bits are part of
the network number and which are part of the host ID.
A class “B” address has two host ID octets available for subnetting and a class “A” address has
three host ID octets (see
) available for subnetting.
The following table is a summary for class “B” subnet planning.
Table 137
Class B Subnet Planning
NO. “BORROWED” HOST
BITS
SUBNET MASK
NO. SUBNETS
NO. HOSTS PER
SUBNET
1
255.255.128.0 (/17)
2
32766
2
255.255.192.0 (/18)
4
16382
3
255.255.224.0 (/19)
8
8190
4
255.255.240.0 (/20)
16
4094
5
255.255.248.0 (/21)
32
2046
6
255.255.252.0 (/22)
64
1022
7
255.255.254.0 (/23)
128
510
8
255.255.255.0 (/24)
256
254
9
255.255.255.128 (/25)
512
126
10
255.255.255.192 (/26)
1024
62
11
255.255.255.224 (/27)
2048
30
12
255.255.255.240 (/28)
4096
14
13
255.255.255.248 (/29)
8192
6
14
255.255.255.252 (/30)
16384
2
15
255.255.255.254 (/31)
32768
1
Summary of Contents for P-660H Series
Page 2: ......
Page 10: ...P 660H HW T Series User Guide 9 Customer Support ...
Page 32: ...P 660H HW T Series User Guide 31 List of Figures ...
Page 38: ...P 660H HW T Series User Guide 37 List of Tables ...
Page 42: ...P 660H HW T Series User Guide 41 Introduction to DSL ...
Page 62: ...P 660H HW T Series User Guide 61 Chapter 3 Wizard Setup for Internet Access ...
Page 90: ...P 660H HW T Series User Guide 89 Chapter 5 Wireless LAN ...
Page 132: ...P 660H HW T Series User Guide 131 Chapter 10 Firewalls ...
Page 162: ...P 660H HW T Series User Guide 161 Chapter 13 Remote Management Configuration ...
Page 176: ...P 660H HW T Series User Guide 175 Chapter 14 Universal Plug and Play UPnP ...
Page 182: ...P 660H HW T Series User Guide 181 Chapter 15 Logs Screens ...
Page 196: ...P 660H HW T Series User Guide 195 Chapter 16 Media Bandwidth Management Advanced Setup ...
Page 208: ...P 660H HW T Series User Guide 207 Chapter 17 Maintenance ...
Page 218: ...P 660H HW T Series User Guide 217 Chapter 19 Menu 1 General Setup ...
Page 222: ...P 660H HW T Series User Guide 221 Chapter 20 Menu 2 WAN Backup Setup ...
Page 226: ...P 660H HW T Series User Guide 225 Chapter 21 Menu 3 LAN Setup ...
Page 230: ...P 660H HW T Series User Guide 229 Chapter 22 Wireless LAN Setup ...
Page 236: ...P 660H HW T Series User Guide 235 Chapter 23 Internet Access ...
Page 250: ...P 660H HW T Series User Guide 249 Chapter 25 Static Route Setup ...
Page 254: ...P 660H HW T Series User Guide 253 Chapter 26 Bridging Setup ...
Page 270: ...P 660H HW T Series User Guide 269 Chapter 27 Network Address Translation NAT ...
Page 286: ...P 660H HW T Series User Guide 285 Chapter 29 Filter Configuration ...
Page 306: ...P 660H HW T Series User Guide 305 Chapter 32 System Information and Diagnosis ...
Page 318: ...P 660H HW T Series User Guide 317 Chapter 33 Firmware and Configuration File Maintenance ...
Page 324: ...P 660H HW T Series User Guide 323 Chapter 34 System Maintenance ...
Page 328: ...P 660H HW T Series User Guide 327 Chapter 35 Remote Management ...
Page 338: ...P 660H HW T Series User Guide 337 Chapter 36 IP Policy Routing ...
Page 342: ...P 660H HW T Series User Guide 341 Chapter 37 Call Scheduling ...
Page 358: ...P 660H HW T Series User Guide 357 Appendix A ...
Page 360: ...P 660H HW T Series User Guide 359 Appendix B ...
Page 384: ...P 660H HW T Series User Guide 383 Appendix D ...
Page 388: ...P 660H HW T Series User Guide 387 Appendix F ...
Page 394: ...P 660H HW T Series User Guide 393 Appendix G ...
Page 398: ...P 660H HW T Series User Guide 397 Appendix H ...
Page 401: ...P 660H HW T Series User Guide Appendix I 400 ...
Page 402: ...P 660H HW T Series User Guide 401 Appendix I ...
Page 456: ...P 660H HW T Series User Guide 455 Appendix M ...